Treatment agent for polyester-based synthetic fibers, composition containing treatment agent for polyester-based synthetic fibers, first treatment agent for polyester-based synthetic fibers, composition containing first treatment agent for polyester-based synthetic fibers, second treatment agent for polyester-based synthetic fibers, composition containing second treatment agent for polyester-based synthetic fibers, third treatment agent for polyester-based synthetic fibers, composition containin

Abstract

Disclosed is a polyester synthetic fiber treatment agent that contains 5% by mass or more of a (poly) oxyalkylene derivative, 1% by mass or more of an inorganic acid compound, and 5% by mass or more of an organic phosphoric acid ester compound. A 1% by mass water-diluted liquid of the polyester synthetic fiber treatment agent (containing no solvent) has a pH at 25° C. of 5.5 or more and 8.5 or less. The inorganic acid compound is at least one selected from the group consisting of sulfuric acid, nitric acid, hydrochloric acid, and salts thereof. The organic phosphoric acid ester compound (C) is at least one selected from the group consisting of an organic phosphoric acid ester and a salt thereof having an alkyl group with 16 or more and 20 or less carbon atoms in a molecule.

1 . A polyester synthetic fiber treatment agent comprising:
 5% by mass or more of a (poly)oxyalkylene derivative (A);   1% by mass or more of an inorganic acid compound (B); and   5% by mass or more of an organic phosphoric acid ester compound (C), wherein   a 1% by mass water-diluted liquid of the polyester synthetic fiber treatment agent (containing no solvent) has a pH at 25° C. of 5.5 or more and 8.5 or less,   the inorganic acid compound (B) is at least one selected from the group consisting of sulfuric acid, nitric acid, hydrochloric acid, and salts thereof, and   the organic phosphoric acid ester compound (C) is at least one selected from the group consisting of an organic phosphoric acid ester and a salt thereof having an alkyl group with 16 or more and 20 or less carbon atoms in a molecule.   
     
     
         2 . The polyester synthetic fiber treatment agent according to  claim 1 , wherein assuming that the sum of the contents of the (poly)oxyalkylene derivative (A), the inorganic acid compound (B), and the organic phosphoric acid ester compound (C) is 100 parts by mass, the polyester synthetic fiber treatment agent contains the (poly)oxyalkylene derivative (A) and the inorganic acid compound (B) in total in an amount of 20 parts by mass or more and 80 parts by mass or less, and contains the organic phosphoric acid ester compound (C) in an amount of 20 parts by mass or more and 80 parts by mass or less. 
     
     
         3 . The polyester synthetic fiber treatment agent according to  claim 1 , wherein
 the polyester synthetic fiber treatment agent is prepared as a set including first and second components of two-component polyester synthetic fiber treatment agent,   the first component of two-component polyester synthetic fiber treatment agent contains the (poly)oxyalkylene derivative (A),   the second component of two-component polyester synthetic fiber treatment agent contains the organic phosphoric acid ester compound (C),   either one or both of the first and second components of two-component polyester synthetic fiber treatment agent contain the inorganic acid compound (B).   
     
     
         4 . The polyester synthetic fiber treatment agent according to  claim 1 , wherein
 the polyester synthetic fiber treatment agent is prepared as a set including first, second, and third components of three-component polyester synthetic fiber treatment agent,   the first component of three-component polyester synthetic fiber treatment agent contains the (poly)oxyalkylene derivative (A),   the second component of three-component polyester synthetic fiber treatment agent contains the organic phosphoric acid ester compound (C), and   the third component of three-component polyester synthetic fiber treatment agent contains the inorganic acid compound (B).   
     
     
         5 . The polyester synthetic fiber treatment agent according to  claim 1 , wherein the polyester synthetic fiber is a polyester short fiber. 
     
     
         6 . The polyester synthetic fiber treatment agent according to  claim 1 , wherein the polyester synthetic fiber is a fiber for spun yarn production. 
     
     
         7 . A composition containing polyester synthetic fiber treatment agent, comprising the polyester synthetic fiber treatment agent according to  claim 1  and a solvent(S), wherein the solvent(S) has a boiling point of 105° C. or lower at atmospheric pressure. 
     
     
         8 . A first component of two-component polyester synthetic fiber treatment agent, comprising a (poly)oxyalkylene derivative (A), wherein
 the first component of two-component polyester synthetic fiber treatment agent is used in combination with a second component of two-component polyester synthetic fiber treatment agent or a composition containing second component of two-component polyester synthetic fiber treatment agent,   the second component of two-component polyester synthetic fiber treatment agent contains an organic phosphoric acid ester compound (C),   the composition containing second component of two-component polyester synthetic fiber treatment agent contains the second component of two-component polyester synthetic fiber treatment agent, which contains an organic phosphoric acid ester compound (C), and a solvent(S),   either one or both of the first and second components of two-component polyester synthetic fiber treatment agent contain an inorganic acid compound (B),   a 1% by mass water-diluted liquid of a mixture (containing no solvent) of the first and second components of two-component polyester synthetic fiber treatment agent has a pH at 25° C. of 5.5 or more and 8.5 or less,   the mixture (containing no solvent) of the first and second components of two-component polyester synthetic fiber treatment agent contains 5% by mass or more of the (poly)oxyalkylene derivative (A), 1% by mass or more of the inorganic acid compound (B), and 5% by mass or more of the organic phosphoric acid ester compound (C),   the inorganic acid compound (B) is at least one selected from the group consisting of sulfuric acid, nitric acid, hydrochloric acid, and salts thereof,   the organic phosphoric acid ester compound (C) is at least one selected from the group consisting of an organic phosphoric acid ester and a salt thereof having an alkyl group with 16 or more and 20 or less carbon atoms in a molecule, and   the solvent(S) has a boiling point of 105° C. or lower at atmospheric pressure.   
     
     
         9 . A composition containing first component of two-component polyester synthetic fiber treatment agent, comprising the first component of two-component polyester synthetic fiber treatment agent according to  claim 8  and a solvent(S), wherein the solvent(S) has a boiling point of 105° C. or lower at atmospheric pressure. 
     
     
         10 . A second component of two-component polyester synthetic fiber treatment agent, comprising an organic phosphoric acid ester compound (C), wherein
 the second component of two-component polyester synthetic fiber treatment agent is used in combination with a first component of two-component polyester synthetic fiber treatment agent or a composition containing first component of two-component polyester synthetic fiber treatment agent,   the first component of two-component polyester synthetic fiber treatment agent contains a (poly)oxyalkylene derivative (A),   the composition containing first component of two-component polyester synthetic fiber treatment agent contains the first component of two-component polyester synthetic fiber treatment agent, which contains a (poly)oxyalkylene derivative (A), and a solvent(S),   either one or both of the first and second components of two-component polyester synthetic fiber treatment agent contain an inorganic acid compound (B),   a 1% by mass water-diluted liquid of a mixture (containing no solvent) of the first and second components of two-component polyester synthetic fiber treatment agent has a pH at 25° C. of 5.5 or more and 8.5 or less,   the mixture (containing no solvent) of the first and second components of two-component polyester synthetic fiber treatment agent contains 5% by mass or more of the (poly)oxyalkylene derivative (A), 1% by mass or more of the inorganic acid compound (B), and 5% by mass or more of the organic phosphoric acid ester compound (C),   the inorganic acid compound (B) is at least one selected from the group consisting of sulfuric acid, nitric acid, hydrochloric acid, and salts thereof,   the organic phosphoric acid ester compound (C) is at least one selected from the group consisting of an organic phosphoric acid ester and a salt thereof having an alkyl group with 16 or more and 20 or less carbon atoms in a molecule, and   the solvent(S) has a boiling point of 105° C. or lower at atmospheric pressure.   
     
     
         11 . A composition containing second component of two-component polyester synthetic fiber treatment agent, comprising the second component of two-component polyester synthetic fiber treatment agent according to  claim 10  and a solvent(S), wherein the solvent(S) has a boiling point of 105° C. or lower at atmospheric pressure. 
     
     
         12 . A first component of three-component polyester synthetic fiber treatment agent, comprising a (poly)oxyalkylene derivative (A), wherein
 the first component of three-component polyester synthetic fiber treatment agent is used in combination with a second component of three-component polyester synthetic fiber treatment agent or a composition containing second component of three-component polyester synthetic fiber treatment agent and a third component of three-component polyester synthetic fiber treatment agent or a composition containing third component of three-component polyester synthetic fiber treatment agent,   the second component of three-component polyester synthetic fiber treatment agent contains an organic phosphoric acid ester compound (C),   the composition containing second component of three-component polyester synthetic fiber treatment agent contains the second component of three-component polyester synthetic fiber treatment agent, which contains an organic phosphoric acid ester compound (C), and a solvent(S), the third component of three-component polyester synthetic fiber treatment agent contains an inorganic acid compound (B),   the composition containing third component of three-component polyester synthetic fiber treatment agent contains the third component of three-component polyester synthetic fiber treatment agent, which contains an inorganic acid compound (B), and a solvent(S),   a 1% by mass water-diluted liquid of a mixture (containing no solvent) of the first, second, and third components of three-component polyester synthetic fiber treatment agent has a pH at 25° C. of 5.5 or more and 8.5 or less,   the mixture (containing no solvent) of the first, second, and third components of three-component polyester synthetic fiber treatment agent contains 5% by mass or more of the (poly)oxyalkylene derivative (A), 1% by mass or more of the inorganic acid compound (B), and 5% by mass or more of the organic phosphoric acid ester compound (C),   the inorganic acid compound (B) is at least one selected from the group consisting of sulfuric acid, nitric acid, hydrochloric acid, and salts thereof,   the organic phosphoric acid ester compound (C) is at least one selected from the group consisting of an organic phosphoric acid ester and a salt thereof having an alkyl group with 16 or more and 20 or less carbon atoms in a molecule, and   the solvent(S) has a boiling point of 105° C. or lower at atmospheric pressure.   
     
     
         13 . A composition containing first component of three-component polyester synthetic fiber treatment agent, comprising the first component of three-component polyester synthetic fiber treatment agent according to  claim 12  and a solvent(S), wherein the solvent(S) has a boiling point of 105° C. or lower at atmospheric pressure. 
     
     
         14 . A second component of three-component polyester synthetic fiber treatment agent, comprising an organic phosphoric acid ester compound (C), wherein
 the second component of three-component polyester synthetic fiber treatment agent is used in combination with a first component of three-component polyester synthetic fiber treatment agent or a composition containing first component of three-component polyester synthetic fiber treatment agent and a third component of three-component polyester synthetic fiber treatment agent or a composition containing third component of three-component polyester synthetic fiber treatment agent,   the first component of three-component polyester synthetic fiber treatment agent contains a (poly)oxyalkylene derivative (A),   the composition containing first component of three-component polyester synthetic fiber treatment agent contains the first component of three-component polyester synthetic fiber treatment agent, which contains a (poly)oxyalkylene derivative (A), and a solvent(S),   the third component of three-component polyester synthetic fiber treatment agent contains an inorganic acid compound (B),   the composition containing third component of three-component polyester synthetic fiber treatment agent contains the third component of three-component polyester synthetic fiber treatment agent, which contains an inorganic acid compound (B), and a solvent(S),   a 1% by mass water-diluted liquid of a mixture (containing no solvent) of the first, second, and third components of three-component polyester synthetic fiber treatment agent has a pH at 25° C. of 5.5 or more and 8.5 or less,   the mixture (containing no solvent) of the first, second, and third components of three-component polyester synthetic fiber treatment agent contains 5% by mass or more of the (poly)oxyalkylene derivative (A), 1% by mass or more of the inorganic acid compound (B), and 5% by mass or more of the organic phosphoric acid ester compound (C),   the inorganic acid compound (B) is at least one selected from the group consisting of sulfuric acid, nitric acid, hydrochloric acid, and salts thereof,   the organic phosphoric acid ester compound (C) is at least one selected from the group consisting of an organic phosphoric acid ester and a salt thereof having an alkyl group with 16 or more and 20 or less carbon atoms in a molecule, and   the solvent(S) has a boiling point of 105° C. or lower at atmospheric pressure.   
     
     
         15 . A composition containing second component of three-component polyester synthetic fiber treatment agent, comprising: the second component of three-component polyester synthetic fiber treatment agent according to  claim 14  and a solvent(S), wherein the solvent(S) has a boiling point of 105° C. or lower at atmospheric pressure. 
     
     
         16 . A third component of three-component polyester synthetic fiber treatment agent, comprising an inorganic acid compound (B), wherein
 the third component of three-component polyester synthetic fiber treatment agent is used in combination with a first component of three-component polyester synthetic fiber treatment agent or a composition containing first component of three-component polyester synthetic fiber treatment agent and a second component of three-component polyester synthetic fiber treatment agent or a composition containing second component of three-component polyester synthetic fiber treatment agent,   the first component of three-component polyester synthetic fiber treatment agent contains a (poly)oxyalkylene derivative (A),   the composition containing first component of three-component polyester synthetic fiber treatment agent contains the first component of three-component polyester synthetic fiber treatment agent, which contains a (poly)oxyalkylene derivative (A), and a solvent(S),   the second component of three-component polyester synthetic fiber treatment agent contains an organic phosphoric acid ester compound (C),   the composition containing second component of three-component polyester synthetic fiber treatment agent contains the second component of three-component polyester synthetic fiber treatment agent, which contains an organic phosphoric acid ester compound (C), and a solvent(S), a 1% by mass water-diluted liquid of a mixture (containing no solvent) of the first, second, and third components of three-component polyester synthetic fiber treatment agent has a pH at 25° C. of 5.5 or more and 8.5 or less,   the mixture (containing no solvent) of the first, second, and third components of three-component polyester synthetic fiber treatment agent contains 5% by mass or more of the (poly)oxyalkylene derivative (A), 1% by mass or more of the inorganic acid compound (B), and 5% by mass or more of the organic phosphoric acid ester compound (C),   the inorganic acid compound (B) is at least one selected from the group consisting of sulfuric acid, nitric acid, hydrochloric acid, and salts thereof,   the organic phosphoric acid ester compound (C) is at least one selected from the group consisting of an organic phosphoric acid ester and a salt thereof having an alkyl group with 16 or more and 20 or less carbon atoms in a molecule, and   the solvent(S) has a boiling point of 105° C. or lower at atmospheric pressure.   
     
     
         17 . A composition containing third component of three-component polyester synthetic fiber treatment agent, comprising the third component of three-component polyester synthetic fiber treatment agent according to  claim 16  and a solvent(S), wherein the solvent(S) has a boiling point of 105° C. or lower at atmospheric pressure. 
     
     
         18 . A diluted liquid of polyester synthetic fiber treatment agent, comprising the polyester synthetic fiber treatment agent according to  claim 1 , wherein the diluted liquid has a concentration of the polyester synthetic fiber treatment agent of 0.1% by mass or more and 10% by mass or less. 
     
     
         19 . A method for treating polyester synthetic fiber, comprising applying to a polyester synthetic fiber a diluted liquid of polyester synthetic fiber treatment agent prepared by adding the polyester synthetic fiber treatment agent according to  claim 1  to water in at least one of a spinning step, a drawn step, and a finishing step of polyester synthetic fibers. 
     
     
         20 . A method for treating polyester synthetic fiber, comprising applying to a polyester synthetic fiber a diluted liquid of polyester synthetic fiber treatment agent prepared by adding the composition containing polyester synthetic fiber treatment agent according to  claim 7  to water in at least one of a spinning step, a drawn step, and a finishing step of polyester synthetic fibers. 
     
     
         21 . (canceled) 
     
     
         22 . (canceled) 
     
     
         23 . A polyester synthetic fiber to which the polyester synthetic fiber treatment agent according to  claim 1  adheres.